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Li A, Li W, Ali T, Yang C, Liu Z, Gao R, He K, Liu XA, Chen Z, Yu ZJ, Li T, Li S. A novel dopamine D2 receptor-NR2B protein complex might contribute to morphine use disorders. Eur J Pharmacol 2023; 961:176174. [PMID: 37939993 DOI: 10.1016/j.ejphar.2023.176174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023]
Abstract
Dopamine receptors can form heteromeric interactions with other receptors, including glutamate receptors, and present a novel pharmacological target because it contribute to dopamine-dysregulated brain disorders such as addiction and other motor-related diseases. In addition, dopamine receptors D2 (D2Rs) and glutamate NMDA receptors subtype-NR2B have been implicated in morphine use disorders; however, the molecular mechanism underlying the heteromeric complex of these two receptors in morphine use disorders is unclear. Herein, we focus on interactions between D2R and NR2B in morphine-induced conditioned place preference (CPP) and hyperlocomotion mice models. We found that the D2R-NR2B complex significantly increases in morphine-induced mice models, accompanied by ERK signaling impairment, implying the complex could contribute to the morphine addiction pathophysiological process. Further, we design a brain-penetrant interfering peptide (TAT-D2-KT), which could disrupt interactions of D2R-NR2B and decrease addictive-like behaviors concurrent to ERK signaling improvement. In summary, our data provided the first evidence for a D2R-NMDAR complex formation in morphine use disorders and its underlying mechanism of ERK signaling, which could present a novel therapeutic target with direct implications for morphine acquisition and relapse treatment.
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Affiliation(s)
- Axiang Li
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Weifen Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Tahir Ali
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China; Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| | - Canyu Yang
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Zizhen Liu
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Ruyan Gao
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Kaiwu He
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
| | - Xin-An Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulation, Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Zuxin Chen
- Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China; University of Chinese Academy of Sciences, Beijing, China; Shenzhen Key Laboratory of Drug Addiction, Shenzhen Neher Neural Plasticity Laboratory, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), China.
| | - Zhi-Jian Yu
- Department of Infectious Diseases and Shenzhen Key Laboratory for Endogenous Infections, The 6th Affiliated Hospital of Shenzhen University Health Science Center, No 89, Taoyuan Road, Nanshan District, Shenzhen, 518052, China.
| | - Tao Li
- College of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, People's Republic of China; Institute of Forensic Injury, Institute of Forensic Bio-Evidence, Western China Science and Technology Innovation Harbor, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China; NHC Key Laboratory of Forensic Science, College of Forensic Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
| | - Shupeng Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, 518055, China; Shenzhen Bay Laboratory, Shenzhen, 518055, China; Campbell Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Zheng Y, Yang C, Zheng X, Guan Q, Yu S. Acrylamide treatment alters the level of Ca 2+ and Ca 2+-related protein kinase in spinal cords of rats. Toxicol Ind Health 2021; 37:113-123. [PMID: 33487136 DOI: 10.1177/0748233720971879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This study aimed to analyze the neurological changes induced by acrylamide (ACR) poisoning and their underlying mechanisms within the spinal cords of male adult Wistar rats. The rats were randomly divided into three groups (n = 9 rats per group). ACR was intraperitoneally injected to produce axonopathy according to the daily dosing schedules of 20 or 40 mg/kg/day of ACR for eight continuous weeks (three times per week). During the exposure period, body weights and gait scores were assessed, and the concentration of Ca2+ was calculated in 27 mice. Protein kinase A (PKA), protein kinase C (PKC), cyclin-dependent protein kinase 5 (CDK5), and P35 were assessed by electrophoretic resolution and Western blotting. The contents of 3'-cyclic adenosine monophosphate (cAMP) and calmodulin (CaM) were determined using ELISA kits, and the activities of calcium/calmodulin-dependent protein kinase II (CaMKII), PKA, and PKC were determined using the commercial Signa TECTPKAassay kits. Compared with control rats, treatment with 20 and 40 mg/kg of ACR decreased body weight and increased gait scores at 8 weeks. Intracellular Ca2+ levels increased significantly in treated rats; CaM, PKC, CDK5, and P35 levels were significantly decreased; and PKA and cAMP levels remained unchanged. CaMKII, PKA, and PKC activities increased significantly. The results indicated that ACR can damage neurofilaments by affecting the contents and activities of CaM, CaMKII, PKA, cAMP, PKC, CDK5, and P35, which could result in ACR toxic neuropathy.
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Affiliation(s)
- Yunhe Zheng
- Gansu Provincial Center for Disease Control and Prevention, West Lanzhou, Gansu, People's Republic of China
| | - Chen Yang
- Gansu Provincial Center for Disease Control and Prevention, West Lanzhou, Gansu, People's Republic of China
| | - Xiu'e Zheng
- Shandong food and Drug Administration, SDFDA, Jinan, People's Republic of China
| | - Qiangdong Guan
- School of Public Health, Nanjing Medical University, Jiangning District, Nanjing, People's Republic of China
| | - Sufang Yu
- School of Public Health, 12589Shandong University, Jinan, People's Republic of China
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Loureiro SO, Heimfarth L, Pelaez PDL, Vanzin CS, Viana L, Wyse ATS, Pessoa-Pureur R. Homocysteine activates calcium-mediated cell signaling mechanisms targeting the cytoskeleton in rat hippocampus. Int J Dev Neurosci 2008; 26:447-55. [PMID: 18406095 DOI: 10.1016/j.ijdevneu.2008.03.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Revised: 03/03/2008] [Accepted: 03/03/2008] [Indexed: 01/13/2023] Open
Abstract
Homocysteine is considered to be neurotoxic and a risk factor for neurodegenerative diseases. Despite the increasing evidences of excitotoxic mechanisms of homocysteine (Hcy), little is known about the action of Hcy on the cytoskeleton. In this context, the aim of the present work was to investigate the signaling pathways involved in the mechanism of action of Hcy on cytoskeletal phosphorylation in cerebral cortex and hippocampus of rats during development. Results showed that 100 microM Hcy increased the intermediate filament (IF) phosphorylation only in 17-day-old rat hippocampal slices without affecting the cerebral cortex from 9- to 29-day-old animals. Stimulation of (45)Ca(2+) uptake supported the involvement of NMDA receptors and voltage-dependent channels in extracellular Ca(2+) flux, as well as Ca(2+) release from intracellular stores through inositol-3-phosphate and ryanodine receptors. Moreover, the mechanisms underlying the Hcy effect on hippocampus cytoskeleton involved the participation of phospholipase C, protein kinase C, mitogen-activated protein kinase, phosphoinositol-3 kinase and calcium/calmodulin-dependent protein kinase II. The Hcy-induced IF hyperphosphorylation was also related to G(i) protein and inhibition of cAMP levels. These findings demonstrate that Hcy at a concentration described to induce neurotoxicity activates the IF-associated phosphorylating system during development in hippocampal slices of rats through different cell signaling mechanisms. These results probably suggest that hippocampal rather than cortical cytoskeleton is susceptible to neurotoxical concentrations of Hcy during development and this could be involved in the neural damage characteristic of mild homocystinuric patients.
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Affiliation(s)
- Samanta Oliveira Loureiro
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande so Sul, Rua Ramiro Barcelos 2600, Porto Alegre, RS, Brazil
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Ratnam J, Teichberg VI. Neurofilament-light increases the cell surface expression of the N-methyl-d-aspartate receptor and prevents its ubiquitination. J Neurochem 2005; 92:878-85. [PMID: 15686490 DOI: 10.1111/j.1471-4159.2004.02936.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
NMDA (N-methyl-D-aspartate) subtype of glutamate receptors are core components of dendritic spine postsynaptic densities (PSDs), in which they are anchored via their carboxy-terminal tails to cytoskeletal proteins. In this study, we examined the role of the neuronal intermediate filament protein, neurofilament-light (NF-L), also a component of the PSD, in the regulation of NMDA receptor (NMDAR) expression and function in a heterologous system. Coexpression of NF-L with NR1 or NR2B subunits of the NMDAR in HEK293 (human embryonic kidney 293) cells did not result in surface expression as measured by surface biotinylation and cell ELISAs, whereas the combined expression of the three elements resulted in a 20% increase in the surface abundance of NR1, along with a concomitant increase in NMDAR-mediated cytotoxicity. Investigating the origin of this increase, we found that the NR1 subunits are ubiquitinated in HEK293 cells, and that the coexpression of NF-L antagonizes this process. These results suggest a possible means of stabilization of NR1 via its association with NF-L.
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Affiliation(s)
- Joseline Ratnam
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
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